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Process URL and IP

protocol​

protocol(url) Extracts the protocol from a URL.

For example protocol('https://docs.timeplus.com/functions')will return the string https

domain​

domain(url) Extracts the domain from a URL.

For example domain('https://docs.timeplus.com/functions')will return the string docs.timeplus.com

port​

port(url) Extracts the port from a URL. If port is missing in the URL, it returns 0.

For example port('https://docs.timeplus.com/functions') will return the integer 0

path​

path(url) Extracts the path from a URL, without the query string or fragment.

For example path('https://docs.timeplus.com/functions') will return the string /functions

path_all​

path_all(url) Extracts the path from a URL, including the query string or fragment.

For example path_full('https://docs.timeplus.com/functions_for_logic#if') will return the string /functions_for_logic#if

fragment​

fragment(url) Extracts the fragment from a URL. If there is no fragment, return an empty string.

For example fragment('https://docs.timeplus.com/functions_for_logic#if') will return the string if

query_string​

query_string(url) Extracts the query string from a URL. If there is no query string, return an empty string.

For example query_string('https://a.com?k=v&key=value') will return the string k=v&key=value

decode_url_component​

decode_url_component(url) Returns the decoded URL.

encode_url_component​

encode_url_component(url) Returns the encoded URL.

ipv4_num_to_string​

ipv4_num_to_string(ip) takes a ipv4 or uint32 value and returns a string containing the corresponding IPv4 address in the format A.B.C.d (dot-separated numbers in decimal form).

For example. select ipv4_num_to_string(1823216871) returns '108.172.20.231'

ipv4_string_to_num​

ipv4_string_to_num(string) takes a string value and returns a uint32 value. If the IPv4 address has an invalid format, it throws exception.

For example. select ipv4_string_to_num('108.172.20.231') returns 1823216871

to_ipv4​

Alias of ipv4_string_to_num

ipv4_num_to_string_class_c​

ipv4_num_to_string_class_c(ip). Similar to ipv4_num_to_string(ip), but using xxx instead of the last octet.

For example. select ipv4_num_to_string_class_c(1823216871) returns '108.172.20.xxx'

warning

Since using ‘xxx’ is highly unusual, this may be changed in the future. We recommend that you do not rely on the exact format of this fragment.

ipv6_num_to_string​

ipv6_num_to_string(ip) takes a fixed_string(16) containing the IPv6 address in binary format. Returns a string containing this address in text format. IPv6-mapped IPv4 addresses are output in the format ::ffff:111.222.33.44.

For example. select ipv6_num_to_string(to_fixed_string(unhex('2A0206B8000000000000000000000011'),16)) returns '2a02:6b8::11'

ipv6_string_to_num​

ipv6_string_to_num(string) takes a string value and returns a uint128 value. If the IPv6 address has an invalid format, it throws exception.

If the input string contains a valid IPv4 address, returns its IPv6 equivalent. HEX can be uppercase or lowercase.

For example. select hex(ipv6_string_to_num('2a02:2168:aaa:bbbb::2')) returns 2A0221680AAABBBB0000000000000002

select hex(ipv6_string_to_num('108.172.20.231')) returns 00000000000000000000FFFF6CAC14E7

to_ipv6​

Alias of ipv6_string_to_num

ipv4_to_ipv6​

ipv4_to_ipv6(ip) Convert the ipv4 value to ipv6

For example: select ipv6_num_to_string(ipv4_to_ipv6(ipv4_string_to_num('192.168.0.1'))) returns '::ffff:192.168.0.1'

ipv4_cidr_to_range​

ipv4_cidr_to_range(ipv4,number)Accepts an IPv4 and an uint8 value containing the CIDR. Return a tuple with two IPv4 containing the lower range and the higher range of the subnet.

For example: select ipv4_cidr_to_range(to_ipv4('192.168.0.1'),16) returns ('192.168.0.0','192.168.255.255')

ipv6_cidr_to_range​

ipv6_cidr_to_range(ipv6,number)Accepts an IPv6 and an uint128 value containing the CIDR. Return a tuple with two IPv6 containing the lower range and the higher range of the subnet.

For example: select ipv6_cidr_to_range(to_ipv6('2001:0db8:0000:85a3:0000:0000:ac1f:8001'),32) returns ('2001:db8::','2001:db8:ffff:ffff:ffff:ffff:ffff:ffff')

is_ipv4_string​

is_ipv4_string(string) returns 1 if it's a ipv4 string, otherwise 0.

is_ipv6_string​

is_ipv6_string(string) returns 1 if it's a ipv6 string, otherwise 0.

is_ip_address_in_range​

is_ip_address_in_range(address, prefix) Determines if an IP address is contained in a network represented in the CIDR notation. Returns true or false.

For example, select is_ip_address_in_range('127.0.0.1', '127.0.0.0/8') returns true. select is_ip_address_in_range('127.0.0.1', 'ffff::/16') returns false

geohash_encode​

geohash_encode(longitude, latitude, [precision]) Encodes latitude and longitude as a geohash string.

Input values

  • longitude - longitude part of the coordinate you want to encode. Floating in range[-180°, 180°]
  • latitude - latitude part of the coordinate you want to encode. Floating in range [-90°, 90°]
  • precision - Optional, length of the resulting encoded string, defaults to 12. Integer in range [1, 12]. Any value less than 1 or greater than 12 is silently converted to 12.

Returned values

  • alphanumeric String of encoded coordinate (modified version of the base32-encoding alphabet is used).

Example

SELECT geohash_encode(-5.60302734375, 42.593994140625, 0) AS res;

Result

┌─res──────────┐
│ ezs42d000000 │
└──────────────┘

geohash_decode​

Decodes any geohash-encoded string into longitude and latitude.

Input values

  • encoded string - geohash-encoded string.

Returned values

  • (longitude, latitude) - 2-tuple of float64 values of longitude and latitude.

Example

SELECT geohash_decode('ezs42d000000') AS res;

Result

┌─res────────────────────────────────────┐
│ (-5.603027176111937,42.59399422444403) │
└────────────────────────────────────────┘

geohashes_in_box​

Returns an array of geohash-encoded strings of given precision that fall inside and intersect boundaries of given box, basically a 2D grid flattened into array.

Syntax

geohashes_in_box(longitude_min, latitude_min, longitude_max, latitude_max, precision)

Arguments

  • longitude_min — Minimum longitude. Range: [-180°, 180°]. Type: float.
  • latitude_min — Minimum latitude. Range: [-90°, 90°]. Type: float.
  • longitude_max — Maximum longitude. Range: [-180°, 180°]. Type: float.
  • latitude_max — Maximum latitude. Range: [-90°, 90°]. Type: float.
  • precision — Geohash precision. Range: [1, 12]. Type: uint8.
note

All coordinate parameters must be of the same type: either float32 or float64.

info

Returned values

  • Array of precision-long strings of geohash-boxes covering provided area, you should not rely on order of items.
  • [] - Empty array if minimum latitude and longitude values aren’t less than corresponding maximum values.

Type: Array(String).

note

Function throws an exception if resulting array is over 10’000’000 items long.

Example

Query:

SELECT geohashes_in_box(24.48, 40.56, 24.785, 40.81, 4) AS thasos;

Result:

┌─thasos──────────────────────────────────────┐
│ ['sx1q','sx1r','sx32','sx1w','sx1x','sx38'] │
└─────────────────────────────────────────────┘
Last updated on by Jove Zhong